no because you need to include the direction, which can be shown in a diagram or say pointing to south west direction, so i think you lost a mark for that

Reply 84

alesha98

Original post by SirRaza97

Well 45 degress to the vertical/horizontal axis. That is a direction. I just drew an arrow in the diagram and put 45 degrees.

"45 degrees from the horizontal table" can be south west or north east, i think the examiners want to see "south west" or a diagram with an arrow

Reply 85

Marxist

Original post by suhaylpatel786

...

Agreed.

Reply 86

michal1212

Original post by KloppOClock

i thought it was an okay paper, maybe 64 for an A?

what do you guys think?

also, does anyone remember the mark distribution of the questions?

I think it was along the lines of ;

1a)
b)
c)

2a) 3marks
b) 3marks

3) 8marks

4a) 4marks
b) 8marks

5) 10marks

6)

7a) 7marks
b) 4marks

8) 8marks
b) 4marks

feel free to add and improve (not totally sure about all).

Reply 87

alesha98

Original post by ChilliLemon

For question 2) (b)

I wrote the reaction force is equal to 15.45N.
Buth then i wrote the force exerted on the steel pan is 15.45 - 1.5g, so i took away the weight of the brick, and got 0.75N.

Will i stil get full marks because i wrote dwon that R=15.45N, though this was not my final answer?

no i am sure that you wont get full mark for that, because you havent rounded up to 2 or 3 sf.

Reply 88

thelegend99

For the one where you had to calculate friction (mu), I put 0.727 to 3 s.f. (i think). Is that right guys?

Reply 89

alesha98

Original post by thelegend99

For the one where you had to calculate friction (mu), I put 0.727 to 3 s.f. (i think). Is that right guys?

yes you are correct.

Reply 90

BB8

As far as I can tell I got it all right except the very last q in which I put southeast as the direction instead of southwest.. 73/75?

Reply 91

KinggBubba

For 2b) did it ask for the answer to 3sf?

Reply 92

e1l2l3i4e5

Please can someone post full working for the moments question?
Im trying to work our where I messed up as I got d=2 and M=90
Thank you

Reply 93

TajwarC

1a) find bearing 3
b) equations 3
c) position vector 4

2a) tension in string 3
b) reaction on thing inside the pan 3

3) particle question, 7

4a) sketch speed time graph, 4
b) solve for T, 8

5) Find coefficient of friction,10

6) moments, 7

7a) find F₂, 7
b) find speed, 4

8) find T, 8
b) resultant on pulley, 4

(edited 7 years ago)

Reply 94

Tom22561

Original post by geniuses

You and me Bro, we will rule the 7th dimension.

yeah you can use those 2 inchers to have a sword fight over allegedly getting 100% ;D

Reply 95

drBee

Original post by KloppOClock

Message me if anything is wrong.
Also, if anyone remembers how many marks each question was worth, please comment so I can add them on too.

Question 1:

Spoiler

Question 2:

Spoiler

Question 3:

Spoiler

Question 4:

Spoiler

Question 5: (10 Marks)

Spoiler

Question 6: (7 Marks?)

Spoiler

Question 7:

Spoiler

Question 8:

Spoiler

At 8, Did you have to write down the bearing? All I did was work out the Tension and the second part I used 2Tcos(45)

Reply 96

examhater44

What do u think the boundary will be for an A?

I think 59-60

Reply 97

TajwarC

Original post by examhater44

What do u think the boundary will be for an A?

I think 59-60

yeah between 59-62 for an A, was easier than last year in my opinion but the second vectors question might have caused a few problems. Maybe 72/73 for 100 UMS